Landmark study proves that magnets can control heat and sound
Source: OSU
By: Pam Frost Gorder
COLUMBUS, OhioResearchers at The Ohio State University have discovered how to control heat with a magnetic field.
In the March 23 issue of the journal Nature Materials, they describe how a magnetic field roughly the size of a medical MRI reduced the amount of heat flowing through a semiconductor by 12 percent.
The study is the first ever to prove that acoustic phononsthe elemental particles that transmit both heat and soundhave magnetic properties.
This adds a new dimension to our understanding of acoustic waves, said Joseph Heremans, Ohio Eminent Scholar in Nanotechnology and professor of mechanical engineering at Ohio State. Weve shown that we can steer heat magnetically. With a strong enough magnetic field, we should be able to steer sound waves, too.
FULL story at link.
Researchers at The Ohio State University have discovered how to control heat with a magnetic field. An experiment proved that the phononthe elementary particle that carries heat and soundhas magnetic properties. Here Joseph Heremans, Ohio Eminent Scholar in Nanotechnology, holds an artists rendering of a phonon heating solid material. Artists rendering by Renee Ripley. Photo by Kevin Fitzsimons, courtesy of The Ohio State University.
Read more: http://news.osu.edu/news/2015/03/23/heatmag/
AtheistCrusader
(33,982 posts)Javaman
(62,534 posts)what's your point?
AtheistCrusader
(33,982 posts)Javaman
(62,534 posts)I don't see your point?
being able to run two systems on one computer is amusing to you?
that's weird.
BlueJazz
(25,348 posts)(no disrespect intended)
Response to BlueJazz (Reply #2)
1000words This message was self-deleted by its author.
BlueJazz
(25,348 posts)XemaSab
(60,212 posts)freshwest
(53,661 posts)One_Life_To_Give
(6,036 posts)snooper2
(30,151 posts)Plasma Confinement
Plasmas consist of charged particlespositive nuclei and negative electronsthat can be shaped and confined by magnetic forces. Like iron filings in the presence of a magnet, particles in the plasma will follow magnetic field lines. The magnetic field acts as a recipient that is not affected by heat like an ordinary solid container.
In ITER, different types of magnetic fields will work in subtle combination to shape the plasma into the form of a ring, or torus, and isolate the very hot plasma from the relatively cold vessel walls in order to retain the energy for as long as possible. The vacuum vessel is the first safety confinement barrier and will not be in contact with the plasma.
http://www.iter.org/sci/plasmaconfinement
packman
(16,296 posts)that the fusion reactors use magnetic fields to "pinch" the plasma fields in order to spark a fusion reaction.
One_Life_To_Give
(6,036 posts)One is a state of matter being contained the other is energy being contained. I don't see these as the same.
NuclearDem
(16,184 posts)valerief
(53,235 posts)Cool.